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Finding the Fourth Proportional to 100,245.60, 150,406.80 and 98,671.20

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Solution

The fourth proportional to 100,245.60, 150,406.80 and 98,671.20 is: 148,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,245.60 : 150,406.80 = 98,671.20 : x
  2. Step 2: Convert to fraction form
    100,245.60/150,406.80 = 98,671.20/x
  3. Step 3: Cross multiply
    100,245.60x = 150,406.80 × 98,671.20
  4. Step 4: Simplify right side
    100,245.60x = 14,840,819,444.16
  5. Step 5: Solve for x
    x = 14,840,819,444.16/100,245.60
  6. Step 6: Final answer
    x = 148,044.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.